Learning to unlearn

I couple years ago I had lunch with a successful serial entrepreneur in San Francisco. Mid way into the conversation we talked about which ideas get funded on Sand Hill Road and which do not. One thing we both agreed on is that no VC will fund projects without product-market fit. Fascinatingly, the lack of […]

HTML5 Tutorial

Where to start if you want to become a web developer

Starting a career as web developer can be a daunting experience. I’ve just given a Q&A to students at a Korean university, and I figured that some of my answers might make for a neat cheatsheet on where to start if you’re new to the world wide web. None of this is new, and more […]

More important than !important

Update (28/7/2017): Doesn’t work in Firefox as it cascades differently and this won’t work in browsers than don’t support Web Animations. Some clever attempts to break include background: linear-gradient(blue, blue) (that technically sets a generated image, not a color, but fixed it anyway in the Pen by animating background instead) and filter: hue-rotate(90deg) (I wouldn’t […]

HTML5 Tutorial

Building a PWAMP #0: Introducing the ShadowReader

TL;DR: Try out the ShadowReader, and browse the source code. I’m happy to introduce the ShadowReader, a (fairly) production-ready, vanilla-JS implementation of the PWAMP pattern combining AMP and PWA. I’ve posted some high level details and motivation why I’ve built it on the AMP blog, but here are some highlights: The entire app (minus fonts, […]

Performance Tutorial

The Illusion of Speed

Like to watch, rather than read? Watch my talk from Awwwards LA 2017. If you could take a 50% hit in real world performance and get a site that feels 50% faster, would you? For years, my colleagues and I have been working on convincing developers that faster websites are better websites. That’s not what this […]

For less debugging madness, set a perf budget

If your plan was to build all the features of your app first, then spend a week to “clean up” and fix any perf issues, then here’s some friendly advice: Make a new plan. While I applaud the various DevTools teams around the world for constantly improving their performance tooling story, performance debugging on the […]

What I learned from going to a design conference

I just came back from Awwwards LA and had a blast. While not technically a design conference (they cross over quite a bit, which is why they invited folks like myself and Sarah), the largest part of the audience were designers (as opposed to developers, my usual audience). Here’s what I thought was interesting and […]

CSS Tutorial

Block formatting contexts and lists

If you’ve been reading about the latest in CSS, you might have read about flow-root. Flow root establishes a new block formatting context, but most have dismissed it as simply replacing clearfix hacks. But consider this extremely common case, where you have a few paragraphs of text, some bullet points and a floating image: See […]